Personally, i prefer other method of undead's healing : The spell Heal is casted on the undead give him 10 Mp instead. Then this undead can cast life drain.
Other: If artificier+runemaster then this wizard may create new artifact from the previous properties. For example, it can create item with regeneration if it have the other artifact with regeneration even if it have no earth book even.
Other: If artificier+runemaster then this wizard may create new artifact from the previous properties. For example, it can create item with regeneration if it have the other artifact with regeneration even if it have no earth book even.